docs: def getScreenshotPropertyFilename(self, screenshotHandle, filenameType, pchFilename, cchFilename):
          """
          Get the filename for the preview or vr image (see
           vr::EScreenshotPropertyFilenames).  The return value is
           the size of the string.
          """
  
          fn = self.function_table.getScreenshotPropertyFilename
          pError = EVRScreenshotError()
          result = fn(screenshotHandle, filenameType, pchFilename, cchFilename, byref(pError))
          return result, pError